Change l4 healthcheck timeout

According to l4 healthcheck constants
the default set up has timeout = 8 seconds
and trashhold = 3 times. As result it can
lead to 24 (8*3) seconds of lost requests.
This change is supposed to decrease this
time to only 6 seconds.

Signed-off-by: Elina Akhmanova <elinka@google.com>

pkg/healthchecksl4/healthchecksl4.go

@@ -38,12 +38,12 @@ import (
 
 const (
 	// L4 Load Balancer parameters
-	gceHcCheckIntervalSeconds = int64(8)
+	gceHcCheckIntervalSeconds = int64(3)
 	gceHcTimeoutSeconds       = int64(1)
 	// Start sending requests as soon as one healthcheck succeeds.
 	gceHcHealthyThreshold = int64(1)
-	// Defaults to 3 * 8 = 24 seconds before the LB will steer traffic away.
-	gceHcUnhealthyThreshold = int64(3)
+	// Defaults to 2 * 3 = 6 seconds before the LB will steer traffic away.
+	gceHcUnhealthyThreshold = int64(2)
 )
 
 var (